CN201393056Y - Protection and detection device of inverter - Google Patents
Protection and detection device of inverter Download PDFInfo
- Publication number
- CN201393056Y CN201393056Y CN200920021600U CN200920021600U CN201393056Y CN 201393056 Y CN201393056 Y CN 201393056Y CN 200920021600 U CN200920021600 U CN 200920021600U CN 200920021600 U CN200920021600 U CN 200920021600U CN 201393056 Y CN201393056 Y CN 201393056Y
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- Prior art keywords
- capacitor
- inverter
- protective tube
- checkout gear
- input
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Abstract
The utility model discloses a protection and detection device of an inverter. The device comprises electronic components of a blocking capacitor, an isolating transformer and a fuse, a capacitor, a thermistor and a diode, and is used for avoiding the damage of a high-power semiconductor device after an open circuit is damaged by an inverter input filter capacitor. The device is connected at both ends of the inverter input filter capacitor, changes the output DC impedance of the protection and detection device according to the existence of the high-frequency peak voltage, provides signal for a post-stage control circuit, and realizes the protection for the inverter.
Description
Technical field
The utility model relates to the protection checkout gear of inverter.
Background technology
All adopt input filter capacitor at present in various inverters, its effect is that input rectifying voltage is carried out filtering and is the inverter circuit power supply.Behind this capacitance damage open circuit, inverter circuit work meeting produces the high frequency peak voltage, causes the overvoltage of inverter large power semiconductor device to damage.Still find no at present the protection testing circuit of effect.
Summary of the invention
The purpose of this utility model is to solve the problem that easily causes the overvoltage of inverter large power semiconductor device to damage after input filter capacitor damages in the present inverter; provide a kind of have simple in structure; easy to use; after damaging open circuit, input filter capacitor provides signal; inverter is quit work, avoid the high frequency peak voltage to damage the protection checkout gear of the inverter of advantage such as large power semiconductor device.
For achieving the above object, the utility model adopts following technical scheme:
A kind of protection checkout gear of inverter, the input of described protection checkout gear is connected with the input of inverter circuit; The output of described protection checkout gear is connected with inverter control circuit.
Described inverter circuit input is provided with filter capacitor C1, and described protection checkout gear input is in parallel with filter capacitor C1.
Described filter capacitor C1 is also in parallel with rectifier bridge TB1 output.
Described protection checkout gear comprises capacitance C2, isolating transformer T1, capacitor C 3, capacitor C 4, protective tube FA1, thermistor FB1, diode RB1 and diode RB2, after capacitance C2 and the former limit of isolating transformer T1 are connected in series, be connected in parallel on inverter input filter capacitor C1 two ends; One end and T1 secondary one end of one end of capacitor C 3, the anode of diode RB2, capacitor C 4 link together, and are connected to an end of inverter control circuit; The end of another termination protective tube of T1 secondary FA1; The other end of another termination C3 of FA1 connects the end of thermistor FB1 again; The negative electrode of another terminating diode RB1 of thermistor FB1; The other end of the anode of RB1, the negative electrode of RB2, C4 connects together, and is connected to the other end of inverter control circuit.
Described protection checkout gear comprises a capacitance C2, isolating transformer T1, capacitor C 3 and protective tube FA1, after capacitance C2 and the former limit of isolating transformer T1 are connected in series, is connected in parallel on inverter input filter capacitor C1 two ends; In parallel with capacitor C 3 behind the isolating transformer T1 secondary one end serial connection protective tube FA1, capacitor C 3 is connected in parallel to control circuit simultaneously.
Described protection checkout gear comprises inductance L 1, capacitor C 2, protective tube FA1, capacitor C 3 and power transformer T1, and wherein the limit of paying of power transformer T1 is connected with control circuit; The former limit of power transformer T1 is in parallel with capacitor C 3, capacitor C 3 one ends directly are connected with the input of rectifier bridge TB1, the other end of capacitor C 3 is connected with protective tube FA1 one end, the other end of protective tube FA1 is connected with capacitor C 2 one ends with inductance L 1 respectively, and the other end of inductance L 1 is connected with another input of rectifier bridge TB1; The other end of capacitor C 2 is connected with capacitor C 1 one ends.
Described protection checkout gear comprises protective tube FA1, capacitor C 2, capacitor C 3 and power transformer T1; Wherein, the limit of paying of power transformer T1 is connected with control circuit; The former limit of power transformer T1 is in parallel with capacitor C 3, capacitor C 3 one ends directly are connected with the input of rectifier bridge TB1, the other end of capacitor C 3 is connected with an end of protective tube FA1 and capacitor C 2, the other end of protective tube FA1 is connected with another input of rectifier bridge TB1, and capacitor C 2 other ends then are connected with capacitor C 1 one ends.
Described protection checkout gear comprises power transformer T1, capacitor C 2, capacitor C 3 and protective tube FA1; Wherein, the former limit of power transformer T1 is connected with the input of rectifier bridge TB1; Paying of power transformer T1 is connected with control circuit after the limit is connected in series protective tube FA1; Two ends at protective tube FA1 also are connected with capacitor C 3 one ends with capacitor C 2 respectively, and capacitor C 2 other ends are connected capacitor C 1 one ends, and capacitor C 3 is connected the other end of capacitor C 1.
Described protection checkout gear comprises protective tube FA1, capacitor C 3 and power transformer T1; Wherein, power transformer T1 pays the limit and is connected with control circuit; The former limit of power transformer T1 is in parallel with capacitor C 3, and input of capacitor C 3 one ends and rectifier bridge TB1 is connected, capacitor C 3 other ends serial connection protective tube FA1, and the other end of protective tube FA1 is connected with another input of rectifier bridge TB1.
The beneficial effects of the utility model are: can be used for the inverter that all adopt input filter capacitor, inverter is effectively protected after input filter capacitor damages, be expected at and obtain employing in frequency converter, uninterrupted power supply, inversion welding machine or the like the product.
Description of drawings
Fig. 1 is the utility model schematic block circuit diagram;
Fig. 2 is the circuit theory diagrams of the utility model embodiment 1;
Fig. 3 is the circuit theory diagrams of the utility model embodiment 2;
Fig. 4 is the circuit theory diagrams of the utility model embodiment 3;
Fig. 5 is the circuit theory diagrams of the utility model embodiment 4;
Fig. 6 is the circuit theory diagrams of the utility model embodiment 5;
Fig. 7 is the circuit theory diagrams of the utility model embodiment 6.
Wherein, 1. inverter circuit, 2. control circuit, 3. protection checkout gear.
Embodiment
Among Fig. 1, the input of protection checkout gear 3 is connected with the input of inverter circuit 1; The output of protection checkout gear 3 is connected with inverter control circuit 2.
Embodiment 1:
Fig. 2 is an embodiment of the present utility model, and inverter circuit 1 input is provided with filter capacitor C4, and protection checkout gear 3 inputs are in parallel with filter capacitor C1.Protection checkout gear 3 comprises capacitance C2, isolating transformer T1, capacitor C 3, capacitor C 4, protective tube FA1, thermistor FB1, diode RB1 and diode RB2, after capacitance C2 and the former limit of isolating transformer T1 are connected in series, be connected in parallel on inverter input filter capacitor C1 two ends; One end and T1 secondary one end of one end of capacitor C 3, the anode of diode RB2, capacitor C 4 link together, and are connected to an end of inverter control circuit; The end of another termination protective tube of T1 secondary FA1; The other end of another termination C3 of FA1 connects the end of thermistor FB1 again; The negative electrode of another terminating diode RB1 of thermistor FB1; The other end of the anode of RB1, the negative electrode of RB2, C4 connects together, and is connected to the other end of inverter control circuit.
When inverter circuit input filter capacitor C1 just often, the C1 both end voltage is more steady, high frequency content is very little, the basic no-voltage of the former secondary of isolating transformer transformer T1, and diode RB1, thermistor FB1, protective tube FA1, the series connection of isolation transformation T1 secondary constitute a direct current low-resistance loop.After input filter capacitor C1 damaged open circuit, the high frequency peak voltage at C1 two ends was coupled to the T1 secondary circuit through C2 by T1 because the high-frequency resistance of capacitor C 3 is very little, so protective tube FA1 moment blow RB1, FB1, direct current high resistant loop of C3 series connection formation.Inverter control circuit just can be realized the protection to inverter according to the variation of above-mentioned dc impedance.
Embodiment 2:
Fig. 3 is another embodiment of the present utility model, and inverter circuit 1 input is provided with filter capacitor C1, and protection checkout gear 3 inputs are in parallel with filter capacitor C1.Protection checkout gear 3 comprises a capacitance C2, isolating transformer T1, capacitor C 3 and protective tube FA1, after capacitance C2 and the former limit of isolating transformer T1 are connected in series, is connected in parallel on inverter input filter capacitor C1 two ends; In parallel with capacitor C 3 behind the isolating transformer T1 secondary one end serial connection protective tube FA1, capacitor C 3 is connected in parallel to control circuit simultaneously.
When inverter circuit input filter capacitor C1 just often, the C1 both end voltage is more steady, high frequency content is very little, the basic no-voltage of isolating transformer 1 former secondary, is isolated the series connection of transformation T1 secondary and is constituted a direct current low-resistance loop protective tube FA1.After input filter capacitor C1 damaged open circuit, the high frequency peak voltage at C1 two ends was coupled to the T1 secondary circuit through C2 by T1, because the high-frequency resistance of capacitor C 3 is very little, so protective tube FA1 moment blows, protected checkout gear to be high-impedance state.Inverter control circuit just can be realized the protection to inverter according to the variation of above-mentioned dc impedance.
Embodiment 3:
Fig. 4 is an embodiment of inverter protection device, and the inverter circuit input is provided with filter capacitor C1, and described protection checkout gear input is in parallel with filter capacitor C1.Filter capacitor C1 is also in parallel with rectifier bridge TB1 output.Protection checkout gear 3 comprises inductance L 1, capacitor C 2, protective tube FA1, capacitor C 3 and power transformer T1, and wherein the limit of paying of power transformer T1 is connected with control circuit; The former limit of power transformer T1 is in parallel with capacitor C 3, capacitor C 3 one ends directly are connected with the input of rectifier bridge TB1, the other end of capacitor C 3 is connected with protective tube FA1 one end, the other end of protective tube FA1 is connected with capacitor C 2 one ends with inductance L 1 respectively, and the other end of inductance L 1 is connected with another input of rectifier bridge TB1; The other end of capacitor C 2 is connected with capacitor C 1 one ends.
When inverter circuit input filter capacitor C1 just often, the C1 both end voltage is more steady, high frequency content is very little, capacitor C 2, protective tube FA1, capacitor C 3, rectifier bridge TB1 constitute one and exchange the low-resistance loop, high frequency content is not enough to protective tube is blown.After input filter capacitor C1 damages open circuit; because L1 is high-impedance state when exchanging; therefore the high frequency peak voltage at C1 two ends constitutes the loop through capacitor C 2, protective tube FA1, capacitor C 3, rectifier bridge TB1 input side; protective tube FA1 moment blows; the former limit of power transformer open circuit; the control circuit outage can realize the protection to inverter.
Embodiment 4:
Fig. 5 is another embodiment of inverter protection device, and the inverter circuit input is provided with filter capacitor C1, and described protection checkout gear input is in parallel with filter capacitor C1.Filter capacitor C1 is also in parallel with rectifier bridge TB1 output.The protection checkout gear comprises protective tube FA1, capacitor C 2, capacitor C 3 and power transformer T1; Wherein, the limit of paying of power transformer T1 is connected with control circuit; The former limit of power transformer T1 is in parallel with capacitor C 3, capacitor C 3 one ends directly are connected with the input of rectifier bridge TB1, the other end of capacitor C 3 is connected with an end of protective tube FA1 and capacitor C 2, the other end of protective tube FA1 is connected with another input of rectifier bridge TB1, and capacitor C 2 other ends then are connected with capacitor C 1 one ends.
When inverter circuit input filter capacitor C1 just often, the C1 both end voltage is more steady, high frequency content is very little, capacitor C 2, protective tube FA1, rectifier bridge TB1 constitute one and exchange the low-resistance loop, high frequency content is not enough to protective tube is blown.After input filter capacitor C1 damages open circuit; the high frequency peak voltage at C1 two ends constitutes the loop through capacitor C 2, protective tube FA1, rectifier bridge TB1 input side, and protective tube FA1 moment is blown the former limit of power transformer open circuit; the control circuit outage can realize the protection to inverter.
Embodiment 5:
Fig. 6 is another embodiment of inverter protection device, and the inverter circuit input is provided with filter capacitor C1, and described protection checkout gear input is in parallel with filter capacitor C1.Filter capacitor C1 is also in parallel with rectifier bridge TB1 output.Protection checkout gear 3 comprises power transformer T1, capacitor C 2, capacitor C 3 and protective tube FA1; Wherein, the former limit of power transformer T1 is connected with the input of rectifier bridge TB1; Paying of power transformer T1 is connected with control circuit after the limit is connected in series protective tube FA1; Two ends at protective tube FA1 also are connected with capacitor C 3 one ends with capacitor C 2 respectively, and capacitor C 2 other ends are connected capacitor C 1 one ends, and capacitor C 3 is connected the other end of capacitor C 1.
When inverter circuit input filter capacitor C1 just often, the C1 both end voltage is more steady, high frequency content is very little, capacitor C 2, protective tube FA1, capacitor C 3 constitutes one and exchanges the low-resistance loop, high frequency content is not enough to protective tube is blown.After input filter capacitor C1 damaged open circuit, the high frequency peak voltage at C1 two ends constituted loops through capacitor C 2, protective tube FA1, capacitor C 3, and protective tube FA1 moment blows, power transformer secondary open circuit, and the control circuit outage can realize the protection to inverter.
Embodiment 6:
Fig. 7 is another embodiment of inverter protection device, and the inverter circuit input is provided with filter capacitor C1, and described protection checkout gear input is in parallel with filter capacitor C1.Filter capacitor C1 is also in parallel with rectifier bridge TB1 output.Protection checkout gear 3 comprises protective tube FA1, capacitor C 3 and power transformer T1; Wherein, power transformer T1 pays the limit and is connected with control circuit; The former limit of power transformer T1 is in parallel with capacitor C 3, and input of capacitor C 3 one ends and TB1 is connected, capacitor C 3 other ends serial connection protective tube FA1, and the other end of protective tube FA1 is connected with another input of rectifier bridge TB1.
When inverter circuit input filter capacitor C1 just often, the C1 both end voltage is more steady, high frequency content is very little, protective tube FA1, capacitor C 3 constitutes one and exchanges the low-resistance loop, high frequency content is not enough to protective tube is blown.After input filter capacitor C1 damages open circuit; the high frequency peak voltage at C1 two ends disturbs electrical network through rectifier bridge; the high frequency peak voltage of electrical network constitutes the loop through capacitor C 3, protective tube FA1; protective tube FA1 moment blows; the former limit of power transformer open circuit; the control circuit outage can realize the protection to inverter.
Claims (9)
1. the protection checkout gear of an inverter is characterized in that, the input of described protection checkout gear is connected with the input of inverter circuit; The output of described protection checkout gear is connected with inverter control circuit.
2. the protection checkout gear of inverter as claimed in claim 1 is characterized in that, described inverter circuit input is provided with filter capacitor C1, and described protection checkout gear input is in parallel with filter capacitor C1.
3. the protection checkout gear of inverter as claimed in claim 2 is characterized in that, described filter capacitor C1 is also in parallel with rectifier bridge TB1 output.
4. the protection checkout gear of inverter as claimed in claim 2, it is characterized in that, described protection checkout gear comprises capacitance C2, isolating transformer T1, capacitor C 3, capacitor C 4, protective tube FA1, thermistor FB1, diode RB1 and diode RB2, after capacitance C2 and the former limit of isolating transformer T1 are connected in series, be connected in parallel on inverter input filter capacitor C1 two ends; One end and T1 secondary one end of one end of capacitor C 3, the anode of diode RB2, capacitor C 4 link together, and are connected to an end of inverter control circuit; The end of another termination protective tube of T1 secondary FA1; The other end of another termination C3 of FA1 connects the end of thermistor FB1 again; The negative electrode of another terminating diode RB1 of thermistor FB1; The other end of the anode of RB1, the negative electrode of RB2, C4 connects together, and is connected to the other end of inverter control circuit.
5. the protection checkout gear of inverter as claimed in claim 2, it is characterized in that, described protection checkout gear comprises a capacitance C2, isolating transformer T1, capacitor C 3 and protective tube FA1, after capacitance C2 and the former limit of isolating transformer T1 are connected in series, be connected in parallel on inverter input filter capacitor C1 two ends; In parallel with capacitor C 3 behind the isolating transformer T1 secondary one end serial connection protective tube FA1, capacitor C 3 is connected in parallel to control circuit simultaneously.
6. the protection checkout gear of inverter as claimed in claim 3 is characterized in that, described protection checkout gear comprises inductance L 1, capacitor C 2, protective tube FA1, capacitor C 3 and power transformer T1, and wherein the limit of paying of power transformer T1 is connected with control circuit; The former limit of power transformer T1 is in parallel with capacitor C 3, capacitor C 3 one ends directly are connected with the input of rectifier bridge TB1, the other end of capacitor C 3 is connected with protective tube FA1 one end, the other end of protective tube FA1 is connected with capacitor C 2 one ends with inductance L 1 respectively, and the other end of inductance L 1 is connected with another input of rectifier bridge TB1; The other end of capacitor C 2 is connected with capacitor C 1 one ends.
7. the protection checkout gear of inverter as claimed in claim 3 is characterized in that, described protection checkout gear comprises protective tube FA1, capacitor C 2, capacitor C 3 and power transformer T1; Wherein, the limit of paying of power transformer T1 is connected with control circuit; The former limit of power transformer T1 is in parallel with capacitor C 3, capacitor C 3 one ends directly are connected with the input of rectifier bridge TB1, the other end of capacitor C 3 is connected with an end of protective tube FA1 and capacitor C 2, the other end of protective tube FA1 is connected with another input of rectifier bridge TB1, and capacitor C 2 other ends then are connected with capacitor C 1 one ends.
8. the protection checkout gear of inverter as claimed in claim 3 is characterized in that, described protection checkout gear comprises power transformer T1, capacitor C 2, capacitor C 3 and protective tube FA1; Wherein, the former limit of power transformer T1 is connected with the input of rectifier bridge TB1; Paying of power transformer T1 is connected with control circuit after the limit is connected in series protective tube FA1; Two ends at protective tube FA1 also are connected with capacitor C 3 one ends with capacitor C 2 respectively, and capacitor C 2 other ends are connected capacitor C 1 one ends, and capacitor C 3 is connected the other end of capacitor C 1.
9. the protection checkout gear of inverter as claimed in claim 3 is characterized in that, described protection checkout gear comprises protective tube FA1, capacitor C 3 and power transformer T1; Wherein, power transformer T1 pays the limit and is connected with control circuit; The former limit of power transformer T1 is in parallel with capacitor C 3, and input of capacitor C 3 one ends and rectifier bridge TB1 is connected, capacitor C 3 other ends serial connection protective tube FA1, and the other end of protective tube FA1 is connected with another input of rectifier bridge TB1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920021600U CN201393056Y (en) | 2009-04-28 | 2009-04-28 | Protection and detection device of inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920021600U CN201393056Y (en) | 2009-04-28 | 2009-04-28 | Protection and detection device of inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201393056Y true CN201393056Y (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920021600U Expired - Lifetime CN201393056Y (en) | 2009-04-28 | 2009-04-28 | Protection and detection device of inverter |
Country Status (1)
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| CN (1) | CN201393056Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887959A (en) * | 2012-12-20 | 2014-06-25 | 三星电机株式会社 | Inverter protection device |
| US9294005B2 (en) | 2013-10-01 | 2016-03-22 | Rockwell Automation Technologies, Inc. | Method and apparatus for detecting AFE filter capacitor degradation |
| US9318944B2 (en) | 2013-04-29 | 2016-04-19 | Rockwell Automation Technologies, Inc. | Methods and apparatus for active front end filter capacitor degradation detection |
| CN103378741B (en) * | 2012-04-30 | 2016-05-18 | 洛克威尔自动控制技术股份有限公司 | Filter condenser degeneration checkout gear and method |
| US9389263B2 (en) | 2014-06-05 | 2016-07-12 | Rockwell Automation Technologies, Inc. | Filter capacitor degradation identification using measured and expected voltage |
| US9490690B2 (en) | 2014-03-11 | 2016-11-08 | Rockwell Automation Technologies, Inc. | Filter capacitor degradation identification using computed power |
| US9488686B2 (en) | 2014-02-24 | 2016-11-08 | Rockwell Automation Technologies, Inc. | Filter capacitor degradation identification using computed current |
| US9553443B2 (en) | 2011-12-29 | 2017-01-24 | General Electric Company | Inverter and power system with fuse protection |
| US9651592B2 (en) | 2013-12-03 | 2017-05-16 | Rockwell Automation Technologies, Inc. | Impedance detector apparatus and method |
| US9735696B2 (en) | 2015-11-25 | 2017-08-15 | Rockwell Automation Technologies, Inc. | Filter capacitor degradation and calibration |
| CN109842097A (en) * | 2017-11-28 | 2019-06-04 | Keb自动化两合公司 | Electronic protection circuit |
-
2009
- 2009-04-28 CN CN200920021600U patent/CN201393056Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9553443B2 (en) | 2011-12-29 | 2017-01-24 | General Electric Company | Inverter and power system with fuse protection |
| CN103378741B (en) * | 2012-04-30 | 2016-05-18 | 洛克威尔自动控制技术股份有限公司 | Filter condenser degeneration checkout gear and method |
| US9653984B2 (en) | 2012-04-30 | 2017-05-16 | Rockwell Automation Technologies, Inc. | Filter capacitor degradation detection apparatus and method |
| CN103887959A (en) * | 2012-12-20 | 2014-06-25 | 三星电机株式会社 | Inverter protection device |
| US9318944B2 (en) | 2013-04-29 | 2016-04-19 | Rockwell Automation Technologies, Inc. | Methods and apparatus for active front end filter capacitor degradation detection |
| US9294005B2 (en) | 2013-10-01 | 2016-03-22 | Rockwell Automation Technologies, Inc. | Method and apparatus for detecting AFE filter capacitor degradation |
| US9651592B2 (en) | 2013-12-03 | 2017-05-16 | Rockwell Automation Technologies, Inc. | Impedance detector apparatus and method |
| US9488686B2 (en) | 2014-02-24 | 2016-11-08 | Rockwell Automation Technologies, Inc. | Filter capacitor degradation identification using computed current |
| US9490690B2 (en) | 2014-03-11 | 2016-11-08 | Rockwell Automation Technologies, Inc. | Filter capacitor degradation identification using computed power |
| US9389263B2 (en) | 2014-06-05 | 2016-07-12 | Rockwell Automation Technologies, Inc. | Filter capacitor degradation identification using measured and expected voltage |
| US9735696B2 (en) | 2015-11-25 | 2017-08-15 | Rockwell Automation Technologies, Inc. | Filter capacitor degradation and calibration |
| CN109842097A (en) * | 2017-11-28 | 2019-06-04 | Keb自动化两合公司 | Electronic protection circuit |
| CN109842097B (en) * | 2017-11-28 | 2022-04-12 | Keb自动化两合公司 | Electronic protection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG AOTAI ELECTRIC CO., LTD. Free format text: FORMER NAME: SHANDONG SHANDA AOTAI ELECTRIC CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 250101 No. 282 Bole Road, hi tech Development Zone, Shandong, Ji'nan Patentee after: Shandong Aotai Electric Co., Ltd. Address before: 250100 Shandong city of Ji'nan province Ying Xiu Lu Mountain high tech Zone Technology Park Hill electrical Austria too Patentee before: Shandong Sdu Aotai Electric Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |